Update Theia to 1.0

Update Thiea to 1.0, described a bit on :
 https://dev.to/svenefftinge/theia-1-0-finally-a-good-browser-ide-3ok0

Add by default some extensions for python and buildout. Also request a frontend so that we can access over IPv4

See merge request !725
2 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
failed SlapOS.SlapRunner.ResilienceTest-Master.ERP5

08:18:33

passed SlapOS.SoftwareReleases.IntegrationTest-Master.Python3

03:49:22